Infineon Technologies CY8C4148AZAS548XQLA1

Overview

CY8C4148AZAS548XQLA1 from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-grade PSoC™ 4100S Max microcontroller based on Arm® Cortex®-M0+ CPU, featuring 48 MHz operation, 384 KB flash, 32 KB SRAM, CAN FD up to 5 Mbps, and integrated CAPSENSE™ with SmartSense auto-tuning. It serves as a reconfigurable system-on-chip for body control modules, smart sensors, and automotive HMI interfaces.

For engineers reviewing the CY8C4148AZAS548XQLA1 datasheet, CY8C4148AZAS548XQLA1 pinout, CY8C4148AZAS548XQLA1 application, or CY8C4148AZAS548XQLA1 equivalent, key selection criteria include CAN FD timing compliance, Deep Sleep current (2.5 µA), SAR ADC resolution (12-bit, 1 Msps), MSC SNR (>5:1), and GPIO flexibility (up to 84 pins, analog/digital/CAPSENSE™ configurable).

Technical Context

The device integrates a single-layer AHB-Lite interconnect linking the Cortex-M0+ core, memory subsystem (384 KB flash with Read Accelerator, 32 KB SRAM), and heterogeneous peripherals including five reconfigurable SCBs (I²C/SPI/UART/LIN), eight TCPWM blocks with quadrature decode and kill-signal triggering, and dual opamps supporting Deep Sleep operation. Clocking combines ECO+PLL (48 MHz), WCO (32 kHz), IMO (±2%), and ILO (40 kHz) for mixed-mode timing control.

Analog subsystem includes a 12-bit SAR ADC with differential input, channel sequencer, and built-in temperature sensor; two CTBm opamps with high-drive external mode and ADC input buffering; and two low-power comparators active in Deep Sleep. The MSC block delivers >5:1 SNR and water-tolerant capacitive sensing via hardware-accelerated SmartSense tuning.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade molding compound.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with S32K144HAT0MLHT and RL78/F14, CY8C4148AZAS548XQLA1 uniquely balances CAN FD, hardware-accelerated CAPSENSE™, and sub-3 µA Deep Sleep in a single AEC-Q100 Grade-S package-making it optimal for integrated HMI + sensor fusion nodes where analog/digital reconfigurability reduces component count.

Availability

CY8C4148AZAS548XQLA1 is available at Aetrix Electronics and suitable for automotive body control modules, touch-based HMIs, smart sensor nodes, and motor interface designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY8C4148AZAS548XQLA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

CY8C4148AZAS548XQLA1 belongs to the PSoC™ 4100S Max product line, designed specifically for AEC-Q100-compliant automotive applications demanding mixed-signal reconfigurability, functional safety support, and integrated human-machine interface capabilities.

FAQ

What is the maximum operating temperature range for CY8C4148AZAS548XQLA1?

This part is qualified to AEC-Q100 Grade-S, with guaranteed operation from –40°C to +105°C ambient temperature. It uses automotive-grade packaging and internal thermal monitoring circuitry to maintain timing and analog performance across this full range, validated per JEDEC JESD22-A104 and JESD22-A108 reliability standards.

Does CY8C4148AZAS548XQLA1 support CAN FD with ISO 11898-1 physical layer compliance?

Yes - the integrated CAN FD controller supports bit rates up to 5 Mbps and complies with ISO 11898-1:2015 for physical layer signaling. It requires an external CAN FD transceiver (e.g., Infineon TLE9251VS) for bus interfacing; the controller handles protocol framing, error handling, and FD-specific arbitration and data phase switching.

How does SmartSense tuning work without host CPU involvement?

SmartSense is implemented in dedicated MSC hardware that autonomously adjusts sensor scan parameters-including modulation frequency, IDAC current, and sample count-based on real-time noise and capacitance measurements. Calibration completes in <100 ms and runs during idle cycles or Deep Sleep wake-up events, requiring zero firmware intervention or parameter tables.

Can all 84 GPIOs be used simultaneously for analog sensing with the SAR ADC?

No - while any GPIO can be routed to the SAR ADC input via the SARMUX, only one channel is sampled at a time due to single ADC core architecture. However, the 16-channel sequencer supports automatic scanning across up to 16 configured pins with hardware averaging per channel, enabling efficient multi-sensor polling without CPU overhead.